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vovangra [49]
2 years ago
5

Beth is sorting her dirty clothes. There

Mathematics
1 answer:
astraxan [27]2 years ago
8 0

Answer:

Step-by-step explana

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Using powers of 10, which would be the best choice for the first number to subtract in the division problem 956 87?
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the second one

Step-by-step explanation:

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Measure these angles.<br><br> a)<br><br> b)
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I REALLY need help<br> what is slope of a line?
igor_vitrenko [27]

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2 years ago
Suppose you open a new game at the county fair. When patrons win, you pay them $3.00; when patrons lose, they pay you $1.00. If
tatyana61 [14]

Answer:

E(X) = 1 *0.8 - 3*0.2 = 0.2

so at the long run we can conclude that the best option is :

A) win 0.20 cents per play

Step-by-step explanation:

Previous concepts

The expected value of a random variable X is the n-th moment about zero of a probability density function f(x) if X is continuous, or the weighted average for a discrete probability distribution, if X is discrete.

The variance of a random variable X represent the spread of the possible values of the variable. The variance of X is written as Var(X).  

Solution to the problem

Let X the random variable who represent the ampunt of money win/loss at the game defined.

The probability of loss $3.00 for this game is 0.2 and the probability of win is 1-0.2=0.8 and you will recieve $1.00 if you win. The expected value is given by:

E(X) = \sum_{i=1}^n X_i P(X_i)

And for this case if we replace we got:

E(X) = 1 *0.8 - 3*0.2 = 0.2

so at the long run we can conclude that the best option is :

A) win 0.20 cents per play

3 0
3 years ago
Complete the square to rewrite y=x(squared)-6x+14 in vertex form.
WITCHER [35]
Y = x² - 6x + 14
y = x² - 6x + 3² - 3² -14
y = (x - 3)² - 9 - 14
y = (x - 3)² - 23

------------------------------------------------
Answer : y = (x - 3)² - 23
------------------------------------------------
4 0
3 years ago
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